## Investigate

What is the sum of the angles in ANY triangle?

Duane Habecker, Created with GeoGebra

## 180° Rule

The sum of the angles in any triangle is always 180°.

Last modified: Sunday, 19 April 2020, 10:26 AM

What is the sum of the angles in ANY triangle?

Duane Habecker, Created with GeoGebra

The sum of the angles in any triangle is always 180°.

Last modified: Sunday, 19 April 2020, 10:26 AM